1*c4762a1bSJed BrownFunction tests pass for order 0 at tolerance 1e-10 2*c4762a1bSJed BrownFunction tests pass for order 0 derivatives at tolerance 1e-10 3*c4762a1bSJed BrownFunction convergence rate at coarsening 0: 0.81 4*c4762a1bSJed BrownDerivative convergence rate at coarsening 0: 0.37 5*c4762a1bSJed BrownFunction convergence rate at coarsening 1: 0.62 6*c4762a1bSJed BrownDerivative convergence rate at coarsening 1: 0.33 7*c4762a1bSJed BrownFunction convergence rate at coarsening 2: 0.58 8*c4762a1bSJed BrownDerivative convergence rate at coarsening 2: 0.22 9